US9551306B2 - Air filtration element - Google Patents

Air filtration element Download PDF

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Publication number
US9551306B2
US9551306B2 US14/326,753 US201414326753A US9551306B2 US 9551306 B2 US9551306 B2 US 9551306B2 US 201414326753 A US201414326753 A US 201414326753A US 9551306 B2 US9551306 B2 US 9551306B2
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United States
Prior art keywords
air filtration
filtration element
end surface
segmented air
center tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/326,753
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English (en)
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US20160010601A1 (en
Inventor
Bobby J. Kinsey, JR.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
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Caterpillar Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Priority to US14/326,753 priority Critical patent/US9551306B2/en
Assigned to CATERPILLAR INC. reassignment CATERPILLAR INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KINSEY, BOBBY J., JR.
Priority to PCT/US2015/037500 priority patent/WO2016007299A1/en
Priority to DE112015002696.7T priority patent/DE112015002696T5/de
Priority to CN201580036662.7A priority patent/CN106559988A/zh
Publication of US20160010601A1 publication Critical patent/US20160010601A1/en
Application granted granted Critical
Publication of US9551306B2 publication Critical patent/US9551306B2/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02483—Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B01D46/0021—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • B01D46/526—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes in stacked arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B01D46/60—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel arranged concentrically or coaxially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02408—Manufacturing filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F02M35/02433—Special alignment with respect to the air intake flow, e.g. angled or in longitudinal flow direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/206—Special forms, e.g. adapted to a certain housing

Definitions

  • the present disclosure relates to an air filtration element, and more specifically to the air filtration element for use in filtering fluids, such as air.
  • Air flow in an engine system may contain entrained particulate material therein. This particulate material if not removed, may cause substantial damage to components of the engine system.
  • An air filtration assembly may be provided in association with the engine system to remove the particulate material from the air flow upstream of the components of the engine system.
  • a variety of the air filtration assemblies are known for removal of the particulate material from the air flow. For example, a z-filter media construction including fluted media sheets may be utilized with the engine system. Based on usage, these air filtration assemblies may need periodic servicing or replacement. Frequent replacement of the air filtration assembly may affect an overall operating cost of the system.
  • U.S. Pat. No. 8,591,622 describes a filter apparatus having a filter stack including a plurality of porous ceramic plates that are axially spaced from one another to define a plurality of axially spaced apart radial flow areas.
  • the filter stack is mounted within a housing.
  • the plurality of porous ceramic plates alternate between a first set of porous ceramic plates that are nested with a second set of porous ceramic plates. At least one of the sides of the porous ceramic plates defines a plurality of radial flutes arranged in a radial array.
  • a segmented air filtration element in one aspect of the present disclosure, includes a center tube defining a central axis and an inner passage therein.
  • the center tube includes a plurality of ribs extending along the central axis and spaced apart from one another.
  • a plurality of segmenting surfaces is attached to the center tube in a radial arrangement with respect to the central axis. The plurality of segmenting surfaces is configured to accommodate a plurality of filter media therebetween such that each of the plurality of filter media is selectively replaceable therefrom.
  • a segmented air filtration element in another aspect of the present disclosure, includes a center tube defining a central axis and an inner passage therein.
  • the center tube comprises a first end surface, a second end surface, and a plurality of ribs extending along the central axis and spaced apart from one another.
  • the plurality of ribs is connected between the first end surface and the second end surface.
  • Each of the plurality of ribs includes a ramped channel thereon provided on an exterior facing surface of the respective rib.
  • a plurality of segmenting surfaces is attached to the center tube in a radial arrangement with respect to the central axis.
  • Each of the plurality of segmenting surfaces having an edge engaged within the ramped channel of the respective rib.
  • a plurality of filter media is attached between each of the plurality of segmenting surfaces in a radially stacked arrangement with respect to the central axis.
  • Each of the plurality of filter media are selectively replaceable therefrom, such that each of the plurality of filter media has a narrow end surface communicating with the inner passage and a broad top surface.
  • a method for assembling a segmented air filtration element includes providing a center tube defining a central axis and an inner passage therein.
  • the center tube includes a plurality of ribs extending along the central axis and spaced apart from one another.
  • the method includes attaching a plurality of segmenting surfaces to the center tube in a radial arrangement with respect to the central axis.
  • the method includes attaching, removably, a plurality of filter media between the plurality of segmenting surfaces and in communication with the inner passage.
  • FIG. 1 is a schematic of an exemplary engine system, according to one embodiment of the present disclosure
  • FIG. 2 is an exploded view of an air filtration element, according to one embodiment of the present disclosure
  • FIG. 3 is a perspective view of a center tube of the air filtration element, according to one embodiment of the present disclosure
  • FIG. 4 is a perspective view of the center tube, according to another embodiment of the present disclosure.
  • FIG. 5 is a perspective view of the center tube, according to yet another embodiment of the present disclosure.
  • FIG. 6 is a perspective view of the center tube and the segmenting surfaces of the air filtration element, according to one embodiment of the present disclosure
  • FIG. 7 is a perspective view of the air filtration element, according to one embodiment of the present disclosure.
  • FIG. 8 is a cross sectional view of the air filtration element, according to one embodiment of the present disclosure.
  • FIG. 9 is a method for assembling the air filtration element, according to one embodiment of the present disclosure.
  • the engine system 100 includes an engine 102 .
  • the engine 102 is embodied as an internal combustion engine powered by diesel fuel. In other embodiments, the engine 102 may be powered by any other fuel such as, gasoline, natural gas, a combination thereof and so on. Further, the engine 102 may be a gas turbine engine.
  • the engine system 100 includes a turbocharger 104 provided in fluid communication with the engine 102 .
  • the turbocharger 104 is provided upstream of the engine 102 with respect to a flow direction of intake air. Further, the turbocharger 104 is provided in fluid communication with an intake manifold 106 associated with the engine 102 .
  • the turbocharger 104 includes a compressor 108 drivably coupled to a turbine 110 .
  • the turbine 110 is driven by exhaust gas exiting from an exhaust manifold 112 associated with the engine 102 which in turn drives the compressor 108 .
  • the compressor 108 is configured to compress and increase a density of the intake air before being supplied to the intake manifold 106 .
  • the engine system 100 also includes an aftercooler 114 , provided downstream of the turbocharger 104 .
  • the aftercooler 114 is provided in fluid communication with the compressor 108 and the intake manifold 106 .
  • the aftercooler 114 is configured to reduce a temperature of the intake air downstream of the compressor 108 before being supplied to the intake manifold 106 .
  • an intercooler (not shown) may be provided within the turbocharger 104 , and more specifically, between consecutive stages of compression of the intake air.
  • the engine system 100 further includes a segmented air filtration element, hereinafter referred to as air filtration element 116 , in fluid communication with the compressor 108 . Further, the air filtration element 116 is in fluid communication with an air source 118 . The air filtration element 116 may receive airflow from the air source 118 . In one example, the airflow may be atmospheric air. The air filtration element 116 is configured to filter the airflow passing therethrough and entering into the compressor 108 . The air filtration element 116 may separate out abrasive particles, debris or any other particulate contaminants from the airflow.
  • the construction and working of the air filtration element 116 will now be described in detail with reference to the subsequent figures.
  • the air filtration element 116 includes a center tube 202 defining a central axis A-A′.
  • the center tube 202 may have a hollow configuration, such that an inner passage 204 formed within the center tube 202 is in fluid communication with the compressor 108 .
  • the center tube 202 may have a cylindrical shape.
  • the center tube 202 includes a first end surface 303 and a second end surface 304 , defining a length “L” of the center tube 202 therebetween.
  • the first end surface 303 and the second end surface 304 may have a ring-like configuration that define openings 306 , 308 communicating with the inner passage 204 respectively.
  • a flange 310 projects axially from the first end surface 303 . Additionally or optionally, the flange 310 may project from the second end surface 304 .
  • the center tube 202 includes a plurality of ribs 312 extending along the length “L” of the center tube 202 .
  • the ribs 312 connect the first and second end surfaces 303 , 304 to each other.
  • the ribs 312 are spaced apart from each other, such that at least two ribs 312 are provided. In the illustrated embodiment, eight ribs 312 are provided in a spaced apart arrangement. The number of ribs 312 may vary based on the application.
  • a ramped channel 314 is also provided on an exterior facing surface 316 of each of the respective ribs 312 .
  • the ramped channel 314 is provided along an entire length of the respective rib 312 . Alternatively, the ramped channel 314 may be provided along a portion of the length of the ribs 312 .
  • the first end surface 403 has a closed configuration, such that an end cap 401 is provided thereon.
  • the end cap 401 may be integral with the first end surface 403 .
  • the end cap 401 may be a separate unit and attached to the first end surface 403 by known mechanical fastening means.
  • the second end surface 404 may serve as an outlet of the air filtration element 116 that is in fluid communication with the compressor 108 .
  • the end cap 401 may be provided at the second end surface 404 .
  • a cylindrical member 501 is slidably received into the inner passage 204 .
  • a length of the cylindrical member 501 may vary based on the application.
  • the cylindrical member 501 has one closed end 507 , such that based on a movement of the cylindrical member 501 within the center tube 502 , the first end surface 503 is closed by the closed end 507 in order to direct the airflow through the second end surface 504 towards the compressor 108 .
  • a diameter of the cylindrical member 501 is lesser than a diameter of the first or second end surfaces 503 , 504 to provide clearance therebetween during the movement.
  • the cylindrical member 501 is received at the second end surface 504 .
  • a number of segmenting surfaces 206 is engaged within the ramped channel 314 of the respective rib 312 (as shown in dashed lines in FIG. 6 ).
  • the segmenting surfaces 206 may have a planar configuration.
  • the segmenting surfaces 206 may be attached to the ribs 312 in a variety of ways.
  • the segmenting surfaces 206 may be securely held within the ramped channel 314 using an adhesive.
  • a thickness of the segmenting surfaces 206 may be so chosen in order to press fit within the ramped channel 314 .
  • the segmenting surfaces 206 are arranged in a radial manner with respect to the central axis A-A′.
  • sixteen segmenting surfaces 206 are shown extending radially with respect to the central axis A-A′ of the center tube 202 , such that two segmenting surfaces 206 are engaged within each ramped channel 314 . In another embodiment, eight segmenting surfaces 206 may be provided such that a single segmenting surface 206 is engaged within the ramped channel 314 .
  • dimensions of the segmenting surfaces 206 for example, thickness, width, length, and number of the segmenting surfaces 206 may vary based on the application without any limitation.
  • FIG. 7 is a perspective view of the air filtration element 116 and FIG. 8 is a sectional view of the air filtration element 116 .
  • a plurality of filter media 208 (as shown in FIGS. 2, 7 and 8 ), is attached between respective adjacent segmenting surfaces 206 .
  • the filter media 208 may have a wedge shape. In one embodiment, the wedge may subtend an angle of approximately between 30° to 45° with respect to the central axis A-A′ of the center tube 202 .
  • the filter media 208 may be arranged in such a manner that a narrow end surface 210 thereof is in fluid communication with the inner passage 204 .
  • the narrow end surface 210 may have a curved or arcuate shape such that the respective filter media 208 may contact with the center tube 202 when assembled (see FIG. 8 ).
  • a broad end surface 212 of each of the filter media 208 may have a flat configuration.
  • a cross section of the air filtration element 116 may have an octagonal configuration (see FIG. 7 ).
  • the air filtration element 116 may have a circular cross section.
  • the cross section of the air filtration element 116 may vary based on the number of segmenting surfaces 206 present in the air filtration element 116 .
  • Each of the filter media 208 along with the respective segmenting surfaces 206 positioned on either side of the filter media 208 is removably attached to the center tube 202 of the air filtration element 116 .
  • the filter media 208 may have an attachment face on either side thereof, for removably attaching the respective filter media 208 between the adjacent segmenting surfaces 206 in the embodiment wherein eight segmenting surfaces 206 are provided.
  • Each of the filter media 208 is coupled between a pair of the segmenting surfaces 206 on either side of the respective filter media 208 by a variety of techniques known in the art, for example, by using an adhesive.
  • the plurality of filter media 208 is attached to the air filtration element 116 in such a manner that each of the filter media 208 may be individually replaceable therefrom.
  • each of the filter media 208 may be embodied as a fluted media pack known in the art.
  • the fluted media pack may include a number of flutes 216 or corrugated sheets arranged within each filter media 208 such that the flutes 216 are provided in a radial arrangement with respect to the central axis A-A′.
  • a backing plate 701 is attached to the first and second end surfaces 303 , 304 of the air filtration element 116 .
  • the backing plate 701 may be attached to the first end surface 303 or the second end surface 304 .
  • the backing plate 701 may have a flat planar configuration having an octagonal shape. Alternatively, the shape and dimensions of the backing plate 701 may vary in order to conform to the cross section of the air filtration element 116 .
  • the air filtration element components such as the center tube 202 , 402 , 502 , the segmenting surfaces 206 and the backing plate 701 may be made from a metal or polymer.
  • a person of ordinary skill in the art will appreciate that the air filtration element 116 design described herein is exemplary and does not limit the scope of the present disclosure.
  • the present disclosure relates to the air filtration element 116 that may have an improved service life.
  • the overall life of the air filtration element 116 may be extended.
  • the life of the air filtration element 116 may be doubled.
  • the air filtration element 116 may be installed with ease in current engine system designs.
  • a method 900 for assembling the air filtration element 116 will now be described in detail.
  • the center tube 202 , 402 , 502 of the air filtration element 116 is provided.
  • the ribs 312 of the center tube 202 , 402 , 502 are disposed in a spaced apart arrangement from each other as described above.
  • the plurality of segmenting surfaces 206 is attached to the center tube 202 , 402 , 502 .
  • the filter media 208 are removably attached between the segmenting surfaces 206 .
  • the airflow containing the particulate contaminants suspended therein may be incident on the broad end surface 212 of the filter media 208 .
  • the flutes 216 present within the filter media 208 may be sealed on opposite ends, causing the airflow to pass through the filter media 208 , thereby causing the particulate contaminants to be filtered out from the airflow.
  • the filtered airflow may contain minimal or no particulate contaminants therein.
  • the filtered airflow may exit through an open end of the flutes 216 positioned at the narrow end surface 210 of the filter media 208 and enter into the inner passage 204 of the center tube 202 . Further, the filtered airflow may flow into the compressor 108 present downstream of the air filtration element 116 .
  • any one or more of the filter media 208 may be removed and replaced with new filter media based on usage of the air filtration element 116 . Removal of individual segments of the filter media 208 may allow for easy servicing of the air filtration element 116 and may improve the life thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US14/326,753 2014-07-09 2014-07-09 Air filtration element Active 2034-11-12 US9551306B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/326,753 US9551306B2 (en) 2014-07-09 2014-07-09 Air filtration element
PCT/US2015/037500 WO2016007299A1 (en) 2014-07-09 2015-06-24 Air filtration element
DE112015002696.7T DE112015002696T5 (de) 2014-07-09 2015-06-24 Luftfilterungselement
CN201580036662.7A CN106559988A (zh) 2014-07-09 2015-06-24 空气过滤元件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/326,753 US9551306B2 (en) 2014-07-09 2014-07-09 Air filtration element

Publications (2)

Publication Number Publication Date
US20160010601A1 US20160010601A1 (en) 2016-01-14
US9551306B2 true US9551306B2 (en) 2017-01-24

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ID=53718137

Family Applications (1)

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US14/326,753 Active 2034-11-12 US9551306B2 (en) 2014-07-09 2014-07-09 Air filtration element

Country Status (4)

Country Link
US (1) US9551306B2 (de)
CN (1) CN106559988A (de)
DE (1) DE112015002696T5 (de)
WO (1) WO2016007299A1 (de)

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JP1541387S (de) * 2015-05-21 2016-01-12
JP1541388S (de) * 2015-05-21 2016-01-12
WO2019040867A1 (en) * 2017-08-25 2019-02-28 Filtration Technology Corporation CORNER-SHAPED FILTERS, ASSEMBLY AND METHOD OF FILTRATION AND COALESCENCE
CN109045858A (zh) * 2018-09-19 2018-12-21 天津远达滤清器股份有限公司 一种新型可更换滤芯的汽车滤清器
US10981335B2 (en) * 2019-02-06 2021-04-20 Caterpillar Inc. Filtration media packs produced using additive manufacturing
CN113236453A (zh) * 2021-06-25 2021-08-10 江西昌河汽车有限责任公司 一种汽车燃油系统进气管灰滤装置
CN113351407B (zh) * 2021-06-30 2022-07-15 汶沛 一种干式漆雾过滤收集及危废记录装置
CN116673609B (zh) * 2023-05-31 2024-04-02 星科激光科技(江苏)有限公司 一种快速的光纤激光切割机排烟设备

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US20160010601A1 (en) 2016-01-14
CN106559988A (zh) 2017-04-05

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